Business & farm

I'm not asking for tax advice. I know the accountant did it incorrectly. My questions are:

 

1. With an S Corp, does the shareholder basis increase by the capital contributions that are needed to pay the expenses?

2. Is there a way to input the 2020 loss in TurboTax business for 2021? Can the 2020 loss be carried forward or do I need to amend the prior year return? It looks like it would fall on the 179 Carryover page, but it won't allow a negative number in the Section 179 QBI for 2020.